Chester



Feb. 7, 192s.

` J. lA. WHEELER, JR., ET AL HIDE AND LEATHER WORKING MACHINE Filed July 26, 1926 6 Sheets-Sheet 2` 77217671@ rs. 7 @WJ Feb. 7, 1928.

J. A. WHEELER, JR., ET AL HIDE AND LEATHER WORKING MACHINE Filed July 26. 1926 6 Sheets-Sheet 5 muv Af/ag.

. Y Y I Il aV u lllllllllin EE .IEE l l Il Feb. 7, 1928.

J. A. WHEELER, JR., ET AL HIDE AND LEATHER WORKING MACHINE FiledA July 26. 1926 6 Sheets-Sheet 4 Feb. 7, 1928.

J. A. WHEELER! JR., ET AL HIDE AND LEATHER WORKING MACHINE Filed July 26. 1926 lllilllNllllll IHI Il H H H Il Il Il ll H lll Il Il Feb. 7, 1928.

J. A. WHEELER, JR., ET AL HIDE AND LEATHER WORKING MACHINE Filed July 26. 1926 6 Sheets-Sheet 6 Patented Feb. 7, 1928.

k'UNITI'.D STATESA JOHN A. WHEELER, JE., OE WEST MEDEOED, AND ROBERT E. WHITNEY, or WIN- CHESTER, MASSACHUSETTS, ASSTGNOES To WHITNEY MACHINE COMPANY, OE

WINCHESTEE, MASSACHUSETTS, A CORPORATION or MASSACHUSETTS.A

HIDE AND LEATHER WORKING MACHINE.

Application flied k111157.26,

This invention relates to hide and leather working machines and its object is topro-A vide a, machine adapted toV worlrcontinu-y ously and simultaneously upon more kthan half a hide or skin until the desired work is accomplished, without the necessity;` of' shifting the position of the hide or skin during the Operation; other objects being to providefor eectively support-ing and holding the hide or skinl while being operated on; to provide for properly spreadingthe hide or skin during ythe operation;.fand to provide a safety device forl the protection of the Operator. l5 The ,machine is adapted to unhair, fine hair and scud hides; put out and set leather; and to perform other similar work.

The invention is illustrated by theV accompanying drawings in which: Figure 1 is a sideV elevation of the machine; Fig. ,f2 is a front elevation of the machine; Figs. 3 and vl; are side elevations of the machine showing different positions of the clamping members;

Fig. 5 `is a plan view of the clutchand brake mechanism; Fig. 6 is a side view partly in section of the clutch and brakelmechanism; Figi? is a side view partly in section of the brake; Fig. 8 is ank elevation showing a portion of the surface ofthe drum with spreaders and scraping blades attached thereto; Fig. 9 is a cross section on the Vline 9-9, Fig. 8 Fig. l0 is a frontview ofa scraping blade; Y and Fig. 11 is an edge view of a scraping blade. n v

. The various parts of the machine are mounted on the frame 1. f n

The drum, or work roll, 2, is preferably ofsulcient diameter and breadth to workably engage more than half ahide or skin, is furnished with the spreading blades 2a and the scraping blades 2b, and is mountedV on shaft 3 j ournaled in the frame and carrying at one end sprocket wheel 4. The flexible hide support 5, which is preferably of sufficient area to cover one quarter Yof the surface of the drum and which consists preferably of an ``underlayer-of rubber beltingj surmounted kby a layer of rubber 7 is fastened at its upper end 8 tothe lower front of the drum4 and parallel-thereto, Which clamping bar' 9 is bolted at each end atlO to the upper end 11 of the swinging arm 12 pivoted near'its lower end vat 13 lto clamping bar '9 horizontally disposed in Y 192e. Seriai No. 124,890.

the frameand centrally yconnected by link 14.1 with the crank pin 15 of the cranks 16, 16a, the latter being a gear, carriedl by the yshaft 16b mounted on the frame.

t rlhe lower end 17 of the rubber belting 6 1s fastened at 18 to the bar 19 horizontally disposedbelow and rearwardly of the ver-` tical, central plane of the drum and parallel thereto, Vwhich bar =19 is mounted in the lower end 20 of levers 21 fulcrumedfat 22 on the frame and havingzry their upper end 23 Journaled in spring controlled blocks 24 ydisposed in the rear end 25 of links26, whose forward end 27 is pivoted at 28 to the lower end 29 of swinging arm 12. Y` l The upper clamping bar 30, disposed-parallel to the lower clamping bar 9, is bolted at 30a to theupper end of'rocker arms 31 pivoted centrally at 13 `to the frame and furnished at their lower end with rollers 32 roperatively engaged bycams 33 onshaft16".

rlhhe rocker arms 31 are engaged rearwardly by spring controlled rods 35 .and '35 mounted kon theframe. s 1

The vsafety device comprises a bar, or rail, 36, disposed between and` parallel to the clamping bars 9.and 30 and fastened at each end to the lower end 37 of rocker arms 38 fulcrumed atl 39 on the upper clamping bar and curved rearwardly and upwardly invengagement with guide rollers L L0 mounted on the sprinkler pipe 41 mounted on the frameywhich rollers serve to guide the raildownwardly and forwardly, as the clamping bars come together, and vice versa. As the rail moves downwardly and forwardly, the lower ends 37 of the rocker arms 38 become, rearwardly, operatively engaged by the kclampingbar 9 (Figs. 1 and 3). J

. The drum 2 is driven continuously in one directionfby the main pulley 50 (driven by Vbelt 50a) `rotatively mounted on shaft l64,

mounted on yfthe frame, which carries sprocket 52 (Fig. 2) connected by sprocket chain 53 with sprocket-54 on sleeve 55, rotatively mounted on the frame, which sleeve carries also sprocket. 56 connected by sprocket chain 57 with sprocket 4 onfdrum lshaft 3. Y s

The clamping bars 9 and 30 are reciprocated,frespectively,"by cranks 16, 16a'and cams 33 on., shaft 16h, which crank 16?i is a geark engaged `by gearv 60 on shaft 61, mounted on the frame, 'which shaft 61cm'- ries also `gear G2 engaged by gear 63 on shaft 64C, mounted on the frame, on which shaft 61 is keyed the driven member 50') (F ig. 5) of a clutch, whose uriving member (pulley) 50 is rotatively mounted on said shaft. Y Y

The clutch, which is of the expanding, frictional type, is operated by the treadle 170 which is fulcrumed at Tl on the frame and has an arm 72 connected bythe spring controlled link 7 3 with the swinging arm 7st Awhich is pivoted at T5 to frame 76 (projected from the main frame),'to whichl arm lis pivoted the collar 77 keyed to shaft 35 mounted on the frame.

The brake drum 8O is rotatively mounted on shaft G5 and is iixedly mounted on the hub of driven member 50" of the clutch; said brake drum being furnished with brake band 8l: fastened at one end S2 to the frame and at the other end to the spring controlled rod 83 slidingly mounted on the frame and furnished with the flange 84 engaged by the inner end of -ro'ckerarm 85 pivoted at S6 to the frame and engaged at its outer end 87 l by the roller 88 mounted in swinging arm L74.

The spring controlled roller 39, mounted on swinging arm 74, contacts with the annular cam `90 on gear 62 and is adapted to drop into the depression 91 in said annular cam, as said gear rotates, and stop its rotation.

The operation is as follows:

n Normally (Fig. 1l) the clamping bars are widely separated and the hide support is far removed from the drum, leaving ample space between them for the insertion of a. hide or skin; the safety rail/is raised up out of the way; the roller 89 is in the depression 91 in the annular cam 90; the brake band 8l is tight upon the brake drum the clutch members are disengaged; and the drum is rotating, being driven by the main pulley.

The operator places a hide or skin over the lower clamping bar and flexible Ahide support and depresses the -treadle, thereby raising the roller 89 out of the depression 91, loosening the brake band, engaging the clutch members, and actuating gear 62, which upon the completion of one rotation is again brought to rest by the roller being forced into the depression; the operator having removed his foot from the treadle.

The gears are so relatively proportioned that one Arotation of gear 62 means but a one-half rotation of gear 16a, kthereby providing for alternately bringing the bars together and separating them by the successive depressions of the treadle.

`Ars the upper clamping bar (Fig. l) descends, the safety rail swings downwardly and outwardly, thereby warning the operator, or actually pushing him away from the machine, as the bars come together; and, as the upper clamping bar ascends, the safety rail assumes its originalk position.

ing bar and iexible hide support and the treadle is depressed, thereby first bringing the clamping bars into engagement with the hide (F ig. 3) and subsequently bringing the flexible hide support into close contact with the drum (Fig. l), thus vproviding yfor suitably positioning the hideL preparatory.1 to its being operated on; and the hide being thus held in close contact with the drum is simultaneously, as well as continuously and uniformly'operated on throughout as long asA may be desired.

The results thus obtained are superior both in-quality and quantity to those obtainable from any other source.

The best results are obtained whenthe skin is placed on the flexible support with its backbone parallel and immediately adjacentfto the clamping bars, as the operation then results in increasing the breadth of the skn,which proves most beneficial in subsequent operat-ions and leaves a finished skin of better shape for cutting out shoe patterns.

This machine does the work of tine hairingy and beaming, now performed by hand., and does it much better and five or six times as rapidly.

The vword drum, asA employed in vthe claims,means a drum, or work roll, equipped with working blades,vas illustrated in the drawings, or otherwise equipped for the particular `work to be done.

`We claiml. .A- hide andi` leather working machine comprising a frameand mounted thereon, in combination: a rotary bladed drum; rockerarms pivoted to the frame; swinging arms pivoted to the frame; a shaftljournaled inthe frameparallel to the axis of the drum; cams disposed on said shaft and operatively engaging saidj rocker arms; cranks disposed on said sha-ft; .links connecting rsaid cranks with said swingingarms; `co-acting clamping ybars disposed in front ofthedrum and parallel to the axis thereof, Vthe upper clamping bar being mounted onrsaid rocker arms and the. lower -Yclamping bar being mounted'on'said swinging arms; rearwardly disposedlevers pivoted to the'frame; links connecting said levers with said rocker arms; a rearwardly disposed bar mountedon .-said levers parallel to the axis of the-dru1n;.a flexible hide and leather support attached at its upper end to said lower clamping bar and at its lower end to said rearwardly disposed bar 5 means for rotating. .the drums; means comprising a frame and mounted thereon,

in combination: a rotary bladed drum;

spring-cushioned rocker arms pivoted to the frame; swinging arms pivoted to the frame; a shaft journaled in the frame parallel to the axis of the drum.; cams disposed on said shaft and operatively engaging said rocker arms; cranks disposed on said shaft; links connecting said cranks with said swinging arms; co-acting clampingbars disposed in front of the drum and parallel to the axis thereof, the upper clamping bar being mounted on said rocker arms and the lower clamping bar being mounted on said swinging arms; rearwardly disposed levers pivoted to the frame; links yieldingly connecting said levers with said rocker arms; a rearwardly disposed bar mounted on said levers parallel to the axis of the drum; a flexible hide and leather support attached at its uppcrend to said lower clamping bar and at its lower end to said rearwardly disposed bar; means for rotating the drum; means for rotating' the shaft carrying said cams and cranks; `and means for automatically stopping said last mentioned shaft at the end of each half-rotation, Vwhereby the clamping members may be either brought together, or separated.

3. In a hide and leather working machine of the character described, in combination: a rotary drum; means for rotating said drum; clamping bars horizontally ydisposed in front of the drum and parallelto the axis thereof; means lor bringing the clamping bars together and separating them; and a safety rail disposed between the clamping bars; together with means for automatically swinging said rail outwardly,-as the bars come together, and inwardly as the bars separate. Y Y f 4. In a hide and leather workingmachine of the character described, in combination: a rotary bladed drum of suicient diameter and breadth to workably and simultaneously engage more than one-halfl the hide or skin,

to be operated on; a flexible hide or yskin support of a correspondingly effective area; with means for rotating the drum and means for alternately carrying the flexible support into contact with the drum and out of such contact.

In a hide and leather working machine of the character described, kin combination: a rotary bladed'drum of sufficient diameter and breadth to workably and simultaneously engagemore than one-half the hide or skin n 7. In a hide'and leather working machineV of the character described,'in combination:

a bladed rotary drum and a flexible hide support, the co-operative surfaces of the drum and support being of sull'icient area to simultaneously and continuously workably engage more than one-half a hide; with means for rotating the drum and means for carrying the support into and out of contact therewith.

JOHN A. WHEELER, JR. ROBERT F. WHITNEY. 

